Improvement in tuyeres



NrTnn STATES ATnNT @Tricia EVEN KOONS, OF FUNKSTOWN, MARYLAND.

IMPROVEMENT IN TUYERES.

Specication forming part of Letters Patent No. 52,508, dated February 6,1866; antedated August 28, 1865.

To all 'whom it may concern:

Be it known that I, EVEN Kooivs, of Funkstown, in the county ofWashington and State of Maryland, have invented a new and usefulImprovement in Fire-Irons for Blacksmiths Forges; and I do herebydeclare that the following is a full and eXact description thereof,reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

My invention consists in making a re-iron or tuyere With a nozzleprojecting above or beyond a surrounding cavity orcup, and also in theuse of a peculiar weighted and removable plug inserted into the nozzle.

1n the accompanying drawings, Figure lis a top view of myimprovedlire-iron or tuyere. Fig. 2 is a detached vien7 ofthe plug. Figs. 3 and4 are vertical sections through the center of the iron and plug.

The main object ofmyinven tion is to prevent the cinders and fused slagfrom closing the nozzle of the flre-iron or tuyere, and thus avoid thenecessity of frequently removing such matters. y

Another advantage of my improvement is the use of an outer rim to thecup or dish of the iire-iron for the purpose of preventing the fusedslag from owin g against the masonry,

and thus avoiding the breaking ofthe hearth.

or brick-work in breaking out the cooled slag or cinders.

My tuyereor re-iron may be best ma-de of castiron with a cup or dishnearly of the form shown in Fig. 4, though I at rst made and used awrought-iron one.

The nozzle H projects considerably above the surrounding cup or dish,and better rise above the outer rim of the same, as is seen in Fig. 4.As the fused cinders form in the iire the same will flow away from thenozzle down into the annular cavity M, where they may accumulate for along time without obstructing the blast or adhering to the masonry.

The form of tuyere shown in Fig. 4 I have used in many blacksmiths7forges, and itA is found unnecessary to interrupt the lire during theentire day, the removal of the cinders in the morning,v when the forgeis cold, being quite sutlcient. u

Into the nozzle of the lire-iron is inserted a weighted plug, C, ofconical form, resting on projections or lugs o. The shape and weight ofthis plug prevent it from being forced ont of place by the blast, andyet it may be easily removed for the purpose ot' cleaning out any dustor ashes that may fall into the air-chamber G through the air-dischargeopening H.

The main portion B of the fire-iron and the flange B may be cast in onepiece and fast,-

ened to the flange G of the air-chamber.

Ihe blast enters the air-chamber G, in the usual manner, through theair-tube A, and follows the course indicated by arrows in Figs. 3 and 4.

The shape of the iire-iron or tuyere and of the annular cavity INI maybe varied according to the circumstances of the forge or furnace wherethe tuyere is used without departing from my invention.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent ofthe United States, is-

1. The cup or dish formed fire-iron or tuyere constructed in the mannerdescribed, for the purpose of allowing the cinders to ow away from theair-discharge openings, and for the purpose of preventing the same fromiiowing out against the brick-work, substantially as described.

2. The use of the conical weighted plug, constructed as and for thepurposes herein described.

EVEN KOON S.

` Witnesses:

DANIEL BREED, TAeirUs N. HALLEY.

